JP3809564B2 - Electrical contact element - Google Patents

Electrical contact element Download PDF

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Publication number
JP3809564B2
JP3809564B2 JP10061396A JP10061396A JP3809564B2 JP 3809564 B2 JP3809564 B2 JP 3809564B2 JP 10061396 A JP10061396 A JP 10061396A JP 10061396 A JP10061396 A JP 10061396A JP 3809564 B2 JP3809564 B2 JP 3809564B2
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Prior art keywords
contact
spring
leg
contact area
bifurcated
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JPH08273710A (en
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ホルスト・リベツク
ハインツ・ウンゲルマン
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シユトツコ・コンタクト・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング・ウント・コンパニー・コマンデイトゲゼルシヤフト
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/112—Resilient sockets forked sockets having two legs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
    • H01R4/2445—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives
    • H01R4/245—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives the additional means having two or more slotted flat portions

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  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Contacts (AREA)

Description

【０００１】
【産業上の利用分野】
本発明は、ハウジングの室内に設けられかつ平らな金属板打抜き部品から曲げて形成される電気接触素子が、弾性的に互いに離れるように変形可能な挟み刃の間に電気ケーブルの絶縁物切り開き導電接続用導入スリツトを形成する挟み刃対と、二又はね脚片の間に平刃プラグとの接触用導入スリツトを形成する二又ばね脚片対とを持つている、プラグ形コネクタ用の電気接触素子に関する。
【０００２】
【従来の技術】
このような電気接触素子は例えば欧州特許第０４１６３０６号明細書から公知である。この公知の電気接触素子は、一端に挟み刃対を持ち、その弾性的に互いに離れるように変形可能な挟み刃の間に、絶縁物切り開き導電接続技法で電気導体を固定することができる。接触素子の他端は二又ばね脚片対として構成され、その二又ばね脚片の間に電気接触のため、例えば電気プラグ形コネクタのプラグの接触ピンを押込むことができる。二又ばね脚片とプラグの押込まれる接触ピンとの間の確実な接触を保証するため、二又ばね脚片は内方へ導入スリツトの中へ突出する接触区域を持つている。刻印部として形成されるこれらの接触区域は、一般に二又ばね脚片対とプラグの押込まれる接触ピンとの良好な接触を行うが、特に平刃プラグを使用する場合、はめ合わされた状態で接触区域がちようど平刃プラグの係止穴の範囲にあり、従つて充分確実な電気接触が保証されないという事態がおこり得る。
【０００３】
【発明が解決しようとする課題】
これから出発して本発明の基礎になっている課題は、異なる大きさの接触ピンを使用する場合にも、二又ばね脚片対と導入スリットへ押込まれる接触ピンとの間に常に確実な接触が保証され、従来の接触素子と比較して接触素子の押込み力が少なくてすむように、電気接触素子を改良することである。
【０００４】
【課題を解決するための手段】
この課題を解決するため本発明によれば、各二双ばね脚片が互いに無関係に弾性的に撓む２つの板ばねから形成され、各板ばねに、内方へ導入スリットの中へ突出する少なくとも１つの接触区域が形成され、１つの二双ばね脚片の２つの板ばねの接触区域が、電気接触素子の縦中心線の側方に形成され、１つの二双ばね脚片に属する２つの板ばねの接触区域が、二双ばね脚片の縦方向に互いにずれて設けられている。
【０００５】
【発明の効果】
偏心してずれて接触区域を設けられる２つの別々に撓む板ばねにより二又ばね脚片を構成することにより、二又ばね脚片の間の導入スリツトへ押込まれる接触ピンの押込み力を減少すると共に、係止穴を持つ平刃プラグを使用する場合係止穴の範囲における接触を回避することができる。なぜならば平刃プラグの係止穴は平刃プラグの中央に形成されているからである。
【０００６】
更に本発明によれば、１つの二又ばね脚片に属する２つの板ばねの接触区域は二又ばね脚片の縦方向に互いにずれて設けられているので、異なる接触ピンを使用する場合にも、二又ばね脚片と導入スリットへ押込まれる接触ピンとの確実な電気接触が保証される。
【０００７】
充分な電気接触を行い特に傾斜接触も回避する確実性は、本発明の好ましい実施態様によれば、一方の板ばねの接触区域が点状接触面を持ち、他方の板ばねの接触区域が線状接触面を持つていることにより、強めることができる。
【０００８】
押込まれる接触ピンに対する二又ばね脚片の個々の板ばねの均一な押圧力を得るために、直接に対向する２つの板ばねの接触区域が同じ形状の接触面を持つている。
【０００９】
それ以上の詳細及び利点は、本発明による電気接触素子の実施例が示されている添付図面の以下の説明から明らかになる。
【００１０】
【実施例】
図１に示す電気接触素子１は１片の金属板打抜き部品から成り、この金属板打抜き部品から順次に続く曲げ過程により電気接触素子１が形成される。その時平らな金属板打抜き部品から、図１ないし３に示すような電気接触素子１が得られる。
【００１１】
いわゆる絶縁物切り開き導電接続技法で電気接触素子１に電気ケーブル２を接触させることができるようにするため、電気接触素子１は２つの互いに平行に設けられる挟み刃対３を持つている。これらの挟み刃対３の各々は２つの挟み刃３ａから成り、これらの挟み刃３ａはその間に電気ケーブル２用の導入スリツト３ｂを形成している。
【００１２】
電気接触素子１と電気プラグ形コネクタのプラグの接触ピン例えば平刃プラグ４とを接触させるため、電気接触素子１は挟み刃対３とは反対側の自由端に二又ばね脚片対５を持つている。二又ばね脚片対５は２つの二又ばね脚片５ａから成り、これらの二又ばね脚片５ａはその間に接触ピン即ち平刃プラグ４用の導入スリツト５ｂを形成している。図２及び３からわかるように、各二又ばね脚片５ａは２つの分離した板ばね５ｃから成つている。
【００１３】
二又ばね脚片５ａと導入スリツト５ｂへ押込まれる平刃プラグ４との確実な電気接触を保証するため、各板ばね５ｃには、図１からわかるように、内方へ導入スリツト５ｂの中へ突出する接触区域６が形成されている。
【００１４】
図２及び３には、電気接触素子１と平刃プラグ４との接触が示されている。接触のため平刃プラグ４が二又ばね脚片対５の導入スリツト５ｂへ押込まれ、それにより二又ばね脚片５ａが互いに離れるように曲げられる。二又ばね脚片５ａが個々の板ばね５ｃに分割して構成されているため、押込み力が減少される。なぜならば個々の板ばね５ｃは、その小さい幅のため、１つの単独の二又ばね脚片５ａより弾性的だからである。なるべく凹みにより形成される接触区域６は、二又ばね脚片５ａの縦方向に互いにずれて、電気接触素子１の縦中心線に対して偏心して設けられ、１つの二又ばね脚片５ａの両方の板ばね５ｃの接触区域６は異なる形状の接触面６ａを持つている。
【００１５】
接触区域６のずれた配置により、図３に示すように、平刃プラグ４が導入スリツト５ｂへ完全に押込まれる時、二又ばね脚片５ａの接触区域６が平刃プラグ４の係止穴４ａの範囲では平刃プラグ４に接触せず、それにより不充分な電気接触が生ずることはない。図３からよくわかるように、接触区域６の接触面６ａは、平刃プラグ４の係止穴４ａから少し離れた所で、平刃プラグ４に接触している。
【００１６】
従つてこのように構成される電気接触素子１により、プラグの接触ピン即ち平刃プラグ４との接触を行うための押込み力を減少すると共に、二又ばね脚片５ａの接触区域６と押込まれるプラグの接触ピンとの常に充分な接触を保証することが可能になる。
【図面の簡単な説明】
【図１】電気接触素子の側面図である。
【図２】平刃プラグの押込み前における電気接触素子の正面図である。
【図３】平刃プラグを押込まれた電気接触素子の正面図である。
【符号の説明】
１ 電気接触素子
２ 電気ケーブル
３ 挟み刃対
３ａ 挟み刃
３ｂ，５ｂ 導入スリツト
４ 平刃プラグ
５ 二又ばね脚片対
５ａ 二又ばね脚片
５ｃ 板ばね
６ 接触区域[0001]
[Industrial application fields]
The present invention relates to an insulating slit conductive of an electric cable between sandwiching blades which are formed by bending from a flat metal plate punched part provided in a housing chamber and can be deformed elastically away from each other. Electrical for a plug-type connector having a pair of sandwiching blades forming a connecting slit for introduction and a pair of bifurcated spring legs for forming a leading slit for contact with a flat blade plug between two or helical leg pieces The present invention relates to a contact element.
[0002]
[Prior art]
Such an electrical contact element is known, for example, from EP 0416306. This known electrical contact element has a pair of sandwiching blades at one end, and an electrical conductor can be fixed between the sandwiching blades that are elastically deformable away from each other by an insulator-cut conductive connection technique. The other end of the contact element is configured as a pair of bifurcated spring legs, and for electrical contact between the bifurcated spring legs, for example, a contact pin of a plug of an electric plug type connector can be pushed. In order to ensure a secure contact between the forked spring leg piece and the contact pin into which the plug is pushed, the forked spring leg piece has a contact area projecting inwardly into the introduction slit. These contact areas, formed as stamps, generally provide good contact between the pair of forked spring legs and the contact pin into which the plug is pushed in, but especially when using flat blade plugs, they are in contact with each other. There can be a situation where the area is very close to the locking hole of the flat blade plug, so that a reliable electrical contact cannot be guaranteed.
[0003]
[Problems to be solved by the invention]
Starting from this, the problem on which the present invention is based is that reliable contact is always possible between the forked spring leg pair and the contact pin pushed into the introduction slit , even when contact pins of different sizes are used. The electrical contact element is improved so that the pushing force of the contact element is less than that of the conventional contact element .
[0004]
[Means for Solving the Problems]
In order to solve this problem, according to the present invention, each double spring leg piece is formed of two leaf springs that are elastically bent independently of each other, and protrudes into the introduction slit inwardly in each leaf spring. At least one contact area is formed, the contact areas of the two leaf springs of one double spring leg are formed on the sides of the longitudinal center line of the electrical contact element, and belong to one double spring leg. The contact areas of the two leaf springs are provided offset from each other in the longitudinal direction of the double spring leg pieces.
[0005]
【The invention's effect】
Decreasing the pushing force of the contact pin pushed into the introduction slit between the bifurcated spring leg pieces by constructing the bifurcated spring leg piece with two separately bent leaf springs that are eccentric and displaced to provide a contact area In addition, when a flat blade plug having a locking hole is used, contact in the range of the locking hole can be avoided. This is because the locking hole of the flat blade plug is formed at the center of the flat blade plug.
[0006]
Further in accordance with onset bright, the contact area of the two leaf springs belonging to one bifurcated leg spring is provided offset from each other in the longitudinal direction of the leg piece bifurcated spring, when using the different contact pins In addition, reliable electrical contact between the bifurcated spring leg piece and the contact pin pushed into the introduction slit is ensured.
[0007]
According to a preferred embodiment of the present invention, the certainty of making sufficient electrical contact and in particular avoiding inclined contact is that the contact area of one leaf spring has a point-like contact surface and the contact area of the other leaf spring is a line. It can be strengthened by having a contact surface.
[0008]
In order to obtain a uniform pressing force of the individual leaf springs of the bifurcated spring leg against the contact pin being pushed in, the contact areas of the two directly facing leaf springs have the same shaped contact surface.
[0009]
Further details and advantages will become apparent from the following description of the accompanying drawings, in which embodiments of the electrical contact element according to the invention are shown.
[0010]
【Example】
The electric contact element 1 shown in FIG. 1 is composed of a piece of metal plate punched part, and the electric contact element 1 is formed by a bending process that continues from this metal plate punched part. At that time, an electric contact element 1 as shown in FIGS. 1 to 3 is obtained from a flat metal plate punched part.
[0011]
In order to be able to bring the electrical cable 2 into contact with the electrical contact element 1 by means of a so-called insulator-cut conductive connection technique, the electrical contact element 1 has two pairs of sandwiching blades 3 provided parallel to each other. Each of the pair of sandwiching blades 3 is composed of two sandwiching blades 3a, and these sandwiching blades 3a form an introduction slit 3b for the electric cable 2 therebetween.
[0012]
In order to bring the electrical contact element 1 into contact with the contact pin of the plug of the electrical plug connector, for example, the flat blade plug 4, the electrical contact element 1 has a forked spring leg pair 5 at the free end opposite to the pinching blade pair 3. Have. The pair of bifurcated spring legs 5 consists of two bifurcated spring legs 5a, which form a contact pin or introduction slit 5b for the flat blade plug 4 between them. As can be seen from FIGS. 2 and 3, each bifurcated spring leg 5a consists of two separate leaf springs 5c.
[0013]
As shown in FIG. 1, each leaf spring 5c has an inward introduction slit 5b in order to ensure reliable electrical contact between the bifurcated spring leg 5a and the flat blade plug 4 pushed into the introduction slit 5b. A contact area 6 projecting inward is formed.
[0014]
2 and 3 show the contact between the electrical contact element 1 and the flat blade plug 4. For contact, the flat blade plug 4 is pushed into the introduction slit 5b of the pair of bifurcated spring legs 5 so that the bifurcated spring legs 5a are bent away from each other. Since the forked spring leg piece 5a is divided into individual leaf springs 5c, the pushing force is reduced. This is because the individual leaf springs 5c are more elastic than a single bifurcated spring leg piece 5a due to their small width. The contact area 6 formed by a recess as much as possible is provided so as to be offset from the longitudinal center line of the electric contact element 1 by being shifted from each other in the longitudinal direction of the bifurcated spring leg piece 5a. The contact areas 6 of both leaf springs 5c have differently shaped contact surfaces 6a.
[0015]
Due to the offset arrangement of the contact area 6, as shown in FIG. 3, when the flat blade plug 4 is pushed completely into the introduction slit 5b, the contact area 6 of the bifurcated spring leg 5a is locked to the flat blade plug 4. In the area of the hole 4a, the flat blade plug 4 is not contacted, thereby preventing insufficient electrical contact. As can be seen from FIG. 3, the contact surface 6 a of the contact area 6 is in contact with the flat blade plug 4 at a distance from the locking hole 4 a of the flat blade plug 4.
[0016]
Therefore, the electric contact element 1 thus configured reduces the pushing force for making contact with the contact pin of the plug, that is, the flat blade plug 4, and pushes against the contact area 6 of the bifurcated spring leg piece 5a. It is possible to guarantee always sufficient contact with the contact pins of the plug.
[Brief description of the drawings]
FIG. 1 is a side view of an electrical contact element.
FIG. 2 is a front view of the electric contact element before the flat blade plug is pushed.
FIG. 3 is a front view of an electric contact element in which a flat blade plug is pushed.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Electric contact element 2 Electric cable 3 Clamping blade pair 3a Clamping blades 3b and 5b Introduction slit 4 Flat blade plug 5 Forked spring leg piece pair 5a Forked spring leg piece 5c Leaf spring 6 Contact area

Claims (3)

ハウジングの室内に設けられかつ平らな金属板打抜き部品から曲げて形成される電気接触素子（１）が、弾性的に互いに離れるように変形可能な鋏み刃（３ａ）の間に電気ケーブル（２）の絶縁物切り開き導電接続用導入スリット（３ｂ）を形成する鋏み刃対（３）と、二又ばね脚片（５ａ）の間に平刃プラグ（４）との接触用導入スリット（５ｂ）を形成する二又ばね脚片対（５）とを持ち、各二又ばね脚片（５ａ）が互いに無関係に弾性的に撓む２つの板ばね（５ｃ）から形成され、各板ばね（５ｃ）に、内方へ導入スリット（５ａ）の中へ突出する少なくとも１つの接触区域（６）が形成され、１つの二又ばね脚片（５ａ）の２つの板ばね（５ｃ）の接触区域（６）が、電気接触素子（１）の縦中心線の側方に形成されているものにおいて、１つの二又ばね脚片（５ａ）に属する２つの板ばね（５ｃ）の接触区域（６）が、二又ばね脚片（５ａ）の縦方向に互いにずれて設けられていることを特徴とする、電気接触素子。An electrical cable (2) between the squeezing blades (3a), which are deformed so as to be elastically separated from each other, the electrical contact elements (1) formed in the housing chamber and bent from a flat metal plate stamping part Between the pair of scissors blades (3) forming the slits (3b) for slitting conductive connection of the insulator and the slits (5b) for contact with the flat blade plug (4) between the bifurcated spring leg pieces (5a). formed to fork spring leg pairs (5) and Chi lifting and formed from the fork leg spring (5a) is independently resiliently flex together two leaf springs (5c), the plate spring (5c ) Is formed with at least one contact area (6) projecting inwardly into the introduction slit (5a), the contact area (2) of the two leaf springs (5c) of one bifurcated spring leg piece (5a) 6), you to what is formed on the side of the longitudinal center line of the electrical contact elements (1) Te, that contact area of the two leaf springs belonging to one bifurcated leg spring (5a) (5c) (6 ) are provided offset from one another in the longitudinal direction of the fork leg spring (5a) wherein, electrical contact elements. 同じ二又ばね脚片（５ａ）の一方の板ばね（５ｃ）の接触区域（６）が点状接触面（６ａ）を持ち、他方の板ばね（５ｃ）の接触区域（６）が線状接触面（６ａ）を持っていることを特徴とする、請求項１に記載の電気接触素子。The contact area (6) of one leaf spring (5c) of the same bifurcated spring leg piece (5a) has a dotted contact surface (6a), and the contact area (6) of the other leaf spring (5c) is linear. Electrical contact element according to claim 1, characterized in that it has a contact surface (6a). 異なる二又ばね脚片（５ａ）の直接対向する２つの板ばね（５ｃ）の接触区域（６）が同じ形状の接触面（６ａ）を持っていることを特徴とする、請求項２に記載の電気接触素子。Wherein the contact area of the two leaf springs directly opposing leg pieces different fork spring (5a) (5c) (6 ) has a contact surface of the same shape (6a), according to claim 2 Electric contact element.
JP10061396A 1995-03-24 1996-03-19 Electrical contact element Expired - Fee Related JP3809564B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29504996U DE29504996U1 (en) 1995-03-24 1995-03-24 Electrical contact element
DE29504996.0 1995-03-24

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JP10061396A Expired - Fee Related JP3809564B2 (en) 1995-03-24 1996-03-19 Electrical contact element

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DE (2) DE29504996U1 (en)

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Also Published As

Publication number Publication date
US5683267A (en) 1997-11-04
EP0734094A1 (en) 1996-09-25
JPH08273710A (en) 1996-10-18
EP0734094B1 (en) 1999-02-03
DE29504996U1 (en) 1995-07-13
DE59505032D1 (en) 1999-03-18

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